Evaluation of the depth-dependent yield strength of a nanoindented ion-irradiated Fe–Cr model alloy by using a finite element modeling
作者： Chansun Shin , Hyung-ha Jin , Maan-Won Kim
DOI: 10.1016/J.JNUCMAT.2009.04.011
关键词: Nanoindentation 、 Composite material 、 Irradiation 、 Alloy 、 Depth dependent 、 Materials science 、 Mineralogy 、 Finite element method 、 Radiation 、 Indentation 、 Ion
摘要: Abstract Ion bombardment of materials produces a shallow damaged region, in which the density radiation-induced defects is highly heterogeneous depth from irradiated surface. A nanoindentation on surface an ion-irradiated specimen probes load-depth ( L – h ) response has varying mechanical property along indentation depth. The measured nano-hardness thus average value hardness over region. dose dependence increase yield strength Fe–Cr model alloy was evaluated by combining test with finite element (FE) modeling. radiation region discretized into number layers pre-defined profile terms level FE dose-dependent and intrinsic regions were extracted comparing computed curve experimentally one.
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